The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 24, 1982
Filed:
Jun. 23, 1980
Applicant:
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ; H02P / ;
U.S. Cl.
CPC ...
368157 ; 318696 ; 368217 ;
Abstract
A feed arrangement enabling detection of the movement of a stepping motor d providing such motor with a series of long duration pulses in the event of failure to step responsive to a short duration pulse. The detector comprises means for sampling a first signal developed by the current in the motor winding and generating a second signal which is the integral of the first, in order to detect whether or not the motor has stepped. The invention is intended for use with micromotors as found in timepieces.